T4批量生成多文件
Manager.ttinclude
<#@ assembly name="System.Core"#>
<#@ assembly name="System.Data.Linq"#>
<#@ assembly name="EnvDTE"#>
<#@ assembly name="System.Xml"#>
<#@ assembly name="System.Xml.Linq"#>
<#@ import namespace="System"#>
<#@ import namespace="System.CodeDom"#>
<#@ import namespace="System.CodeDom.Compiler"#>
<#@ import namespace="System.Collections.Generic"#>
<#@ import namespace="System.Data.Linq"#>
<#@ import namespace="System.Data.Linq.Mapping"#>
<#@ import namespace="System.IO"#>
<#@ import namespace="System.Linq"#>
<#@ import namespace="System.Reflection"#>
<#@ import namespace="System.Text"#>
<#@ import namespace="System.Xml.Linq"#>
<#@ import namespace="Microsoft.VisualStudio.TextTemplating"#>
<#+
// Manager class records the various blocks so it can split them up
class Manager {
private class Block {
public String Name;
public int Start, Length;
}
private Block currentBlock;
private List<Block> files = new List<Block>();
private Block footer = new Block();
private Block header = new Block();
private ITextTemplatingEngineHost host;
private StringBuilder template;
protected List<String> generatedFileNames = new List<String>();
public static Manager Create(ITextTemplatingEngineHost host, StringBuilder template) {
return (host is IServiceProvider) ? new VSManager(host, template) : new Manager(host, template);
}
public void StartNewFile(String name) {
if (name == null)
throw new ArgumentNullException("name");
CurrentBlock = new Block { Name = name };
}
public void StartFooter() {
CurrentBlock = footer;
}
public void StartHeader() {
CurrentBlock = header;
}
public void EndBlock() {
if (CurrentBlock == null)
return;
CurrentBlock.Length = template.Length - CurrentBlock.Start;
if (CurrentBlock != header && CurrentBlock != footer)
files.Add(CurrentBlock);
currentBlock = null;
}
public virtual void Process(bool split) {
if (split) {
EndBlock();
String headerText = template.ToString(header.Start, header.Length);
String footerText = template.ToString(footer.Start, footer.Length);
String outputPath = Path.GetDirectoryName(host.TemplateFile);
files.Reverse();
foreach(Block block in files) {
String fileName = Path.Combine(outputPath, block.Name);
String content = headerText + template.ToString(block.Start, block.Length) + footerText;
generatedFileNames.Add(fileName);
CreateFile(fileName, content);
template.Remove(block.Start, block.Length);
}
}
}
protected virtual void CreateFile(String fileName, String content) {
if (IsFileContentDifferent(fileName, content))
File.WriteAllText(fileName, content);
}
public virtual String GetCustomToolNamespace(String fileName) {
return null;
}
public virtual String DefaultProjectNamespace {
get { return null; }
}
protected bool IsFileContentDifferent(String fileName, String newContent) {
return !(File.Exists(fileName) && File.ReadAllText(fileName) == newContent);
}
private Manager(ITextTemplatingEngineHost host, StringBuilder template) {
this.host = host;
this.template = template;
}
private Block CurrentBlock {
get { return currentBlock; }
set {
if (CurrentBlock != null)
EndBlock();
if (value != null)
value.Start = template.Length;
currentBlock = value;
}
}
private class VSManager: Manager {
private EnvDTE.ProjectItem templateProjectItem;
private EnvDTE.DTE dte;
private Action<String> checkOutAction;
private Action<IEnumerable<String>> projectSyncAction;
public override String DefaultProjectNamespace {
get {
return templateProjectItem.ContainingProject.Properties.Item("DefaultNamespace").Value.ToString();
}
}
public override String GetCustomToolNamespace(string fileName) {
return dte.Solution.FindProjectItem(fileName).Properties.Item("CustomToolNamespace").Value.ToString();
}
public override void Process(bool split) {
if (templateProjectItem.ProjectItems == null)
return;
base.Process(split);
projectSyncAction.EndInvoke(projectSyncAction.BeginInvoke(generatedFileNames, null, null));
}
protected override void CreateFile(String fileName, String content) {
if (IsFileContentDifferent(fileName, content)) {
CheckoutFileIfRequired(fileName);
File.WriteAllText(fileName, content);
}
}
internal VSManager(ITextTemplatingEngineHost host, StringBuilder template)
: base(host, template) {
var hostServiceProvider = (IServiceProvider) host;
if (hostServiceProvider == null)
throw new ArgumentNullException("Could not obtain IServiceProvider");
dte = (EnvDTE.DTE) hostServiceProvider.GetService(typeof(EnvDTE.DTE));
if (dte == null)
throw new ArgumentNullException("Could not obtain DTE from host");
templateProjectItem = dte.Solution.FindProjectItem(host.TemplateFile);
checkOutAction = (String fileName) => dte.SourceControl.CheckOutItem(fileName);
projectSyncAction = (IEnumerable<String> keepFileNames) => ProjectSync(templateProjectItem, keepFileNames);
}
private static void ProjectSync(EnvDTE.ProjectItem templateProjectItem, IEnumerable<String> keepFileNames) {
var keepFileNameSet = new HashSet<String>(keepFileNames);
var projectFiles = new Dictionary<String, EnvDTE.ProjectItem>();
var originalFilePrefix = Path.GetFileNameWithoutExtension(templateProjectItem.get_FileNames(0)) + ".";
foreach(EnvDTE.ProjectItem projectItem in templateProjectItem.ProjectItems)
projectFiles.Add(projectItem.get_FileNames(0), projectItem);
// Remove unused items from the project
foreach(var pair in projectFiles)
if (!keepFileNames.Contains(pair.Key) && !(Path.GetFileNameWithoutExtension(pair.Key) + ".").StartsWith(originalFilePrefix))
pair.Value.Delete();
// Add missing files to the project
foreach(String fileName in keepFileNameSet)
if (!projectFiles.ContainsKey(fileName))
templateProjectItem.ProjectItems.AddFromFile(fileName);
}
private void CheckoutFileIfRequired(String fileName) {
var sc = dte.SourceControl;
if (sc != null && sc.IsItemUnderSCC(fileName) && !sc.IsItemCheckedOut(fileName))
checkOutAction.EndInvoke(checkOutAction.BeginInvoke(fileName, null, null));
}
}
} #>
批量生成实体类(数据库访问)
<#@ template debug="false" hostspecific="true" language="C#" #>
<#@ assembly name="System.Data" #>
<#@ assembly name="System.xml" #>
<#@ import namespace="System.Collections.Generic" #>
<#@ import namespace="System.Data.SqlClient" #>
<#@ import namespace="System.Data" #>
<#@ assembly name="System.Core" #>
<#@ import namespace="System.Linq" #>
<#@include file="$(SolutionDir)\Manager.ttinclude"#>
<# var manager = Manager.Create(Host, GenerationEnvironment); #>
<# manager.StartHeader(); #>
using System;
using System.Collections.Generic;
namespace My.Model
{
<# manager.EndBlock(); #>
<#
string connectionString= "server=localhost;database=UserRight;uid=sa;pwd=123@abc;";
SqlConnection conn = new SqlConnection(connectionString);
conn.Open();
string selectQuery ="SET FMTONLY ON; select * from @tableName; SET FMTONLY OFF;";
SqlCommand command = new SqlCommand(selectQuery,conn);
SqlDataAdapter ad = new SqlDataAdapter(command);
System.Data.DataSet ds = new DataSet();
System.Data.DataTable schema = conn.GetSchema("Tables");
foreach(System.Data.DataRow row in schema.Rows)
{
ds.Tables.Clear();
string tb_name = row["TABLE_NAME"].ToString();
command.CommandText = selectQuery.Replace("@tableName",row["TABLE_NAME"].ToString());
ad.FillSchema(ds,SchemaType.Mapped,tb_name);
manager.StartNewFile(tb_name+".cs");
#>
/// <summary>
/// 实体-<#=tb_name#>
/// </summary>
public partial class <#=tb_name#>
{
<#
PushIndent(" ");
foreach (DataColumn dc in ds.Tables[0].Columns)
{
WriteLine("public " + dc.DataType.Name + (dc.AllowDBNull && dc.DataType.Name.ToLower() != "string" ? "? ": " ") + dc.ColumnName + " { get; set; }");
}
PopIndent();
#>
}
<#
manager.EndBlock();
}
conn.Close();
#>
<# manager.StartFooter(); #>
}
<# manager.EndBlock(); #>
<# manager.Process(true); #>
批量生成实体类(ADO实体对象模型)
<#@ template debug="false" hostspecific="true" language="C#" #>
<#@ assembly name="System.Data" #>
<#@ assembly name="System.xml" #>
<#@ assembly name="System.Core" #>
<#@ import namespace="System.Collections.Generic" #>
<#@ import namespace="System.Data.SqlClient" #>
<#@ import namespace="System.Data" #>
<#@ import namespace="System.Linq" #>
<#@ output extension=".cs" #>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace JiaHe.Entities
{
<#
string connectionString= "server=localhost;database=JiaHe;uid=sa;pwd=123@abc;";
SqlConnection conn = new SqlConnection(connectionString);
conn.Open();
System.Data.DataTable schema = conn.GetSchema("Tables");
foreach(System.Data.DataRow row in schema.Rows)
{
string tb_name= row["TABLE_NAME"].ToString();
string selectQuery =
@"
SELECT (case when a.colorder=1 then d.name else null end) 表名, a.colorder 字段序号,a.name 字段名,
(case when COLUMNPROPERTY( a.id,a.name,'IsIdentity')=1 then '√'else '' end) 标识,
(case when (SELECT count(*) FROM sysobjects WHERE (name in (
SELECT name FROM sysindexes WHERE (id = a.id) AND (indid in
(SELECT indid FROM sysindexkeys WHERE (id = a.id) AND (colid in
(SELECT colid FROM syscolumns WHERE (id = a.id) AND (name = a.name)))))))
AND (xtype = 'PK'))>0 then '√' else '' end) 主键,b.name 类型,a.length 占用字节数,
COLUMNPROPERTY(a.id,a.name,'PRECISION') as 长度,
isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0) as 小数位数,(case when a.isnullable=1 then '√'else '' end) 允许空,
isnull(e.text,'') 默认值,isnull(g.[value], ' ') AS [说明]
FROM syscolumns a
left join systypes b on a.xtype=b.xusertype
inner join sysobjects d on a.id=d.id and d.xtype='U' and d.name<>'dtproperties'
left join syscomments e on a.cdefault=e.id
left join sys.extended_properties g on a.id=g.major_id AND a.colid=g.minor_id
left join sys.extended_properties f on d.id=f.class and f.minor_id=0
--where b.name is not null
--WHERE d.name='TestTB' --如果只查询指定表,加上此条件
WHERE d.NAME = '" + tb_name + @"' --如果只查询指定表,加上此条件
order by a.id,a.colorder
";
SqlCommand command = new SqlCommand(selectQuery,conn);
SqlDataAdapter ad = new SqlDataAdapter(command);
System.Data.DataSet ds = new DataSet();
ad.Fill(ds);
WriteLine(" public partial class " + tb_name);
WriteLine(" {");
foreach (DataRow dr in ds.Tables[0].Rows)
{
string fieldType="";
switch(dr["类型"].ToString()){
case "bit":
fieldType="bool";
break;
case "int":
fieldType="int";
break;
case "smallint":
fieldType="int";
break;
case "tinyint":
fieldType="int";
break;
case "bigint":
fieldType="int";
break;
case "float":
fieldType="float";
break;
case "double":
fieldType="float";
break;
case "decimal":
fieldType="float";
break;
case "datetime":
fieldType="DateTime";
break;
case "date":
fieldType="DateTime";
break;
case "smalldatetime":
fieldType="DateTime";
break;
case "timestamp":
fieldType="int";
break;
default:
fieldType="string";
break;
}
string temp=" public " + fieldType +" " + dr["字段名"] + " { get; set; }";
if(!string.IsNullOrEmpty(dr["说明"].ToString()))
temp += "//"+dr["说明"].ToString();
WriteLine(temp);
}
WriteLine(" }");
}
conn.Close();
#>
}
